CN204405838U - The system that radar for backing car and trunk open function combine - Google Patents
The system that radar for backing car and trunk open function combine Download PDFInfo
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- CN204405838U CN204405838U CN201420515745.7U CN201420515745U CN204405838U CN 204405838 U CN204405838 U CN 204405838U CN 201420515745 U CN201420515745 U CN 201420515745U CN 204405838 U CN204405838 U CN 204405838U
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- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000006698 induction Effects 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 5
- 238000002604 ultrasonography Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses the system of a kind of radar for backing car and the combination of trunk open function, the function that the function of combining radar for backing car and trunk are opened, use same central processor unit, one or more ultrasonic sensor of recycling radar for backing car, detection vehicle rear, judge whether people stands in the appointed area at rear, tailstock portion, the constraint condition of automatically opening as trunk and foundation, utilize the authentication condition of PKE system as the identity of car owner of former car, thus make the foot position of human body sweep tailstock bottom after, just can automatically open car trunk.
Description
Technical field
The utility model relates to the technical field of automobile component and control method thereof, is specifically related to system radar for backing car and trunk open function combined.
Background technology
At present, on market, the reverse radar system of vehicle and trunk open system two overlap independently system.Reverse radar system generally needs at least two ultrasonic sensors to coordinate a central processor unit, under environment of parking, two ultrasonic sensors send ultrasound wave signal, again by the barrier at echo signal detection rear, pointed out the reversing environment at driver rear by the mode of sound and light alarm.
Trunk automatic opening system generally needs two human body induction antennas and a central processor unit, rear side and bumper inner underside in the rear bumper that two human body induction antennas are arranged on vehicle 45, as the rear side antenna 40 in Fig. 1 and downside antenna 41, detect rear environment and below environment respectively, thus determine that human foot position 42 sweeps the course of action below tailstock middle part, in conjunction with vehicle PKE system (automotive keyless entering system, PASSIVE KEYLESS ENTER) certification, finally trunk is opened automatically.
Existing reverse radar system and trunk open system two overlap independently system, do not have interconnection and common ground, also do not have the function that two kinds of sensors combine detection.Reverse radar system generally only uses ultrasonic radar sensor, and trunk open system only uses antenna sensor, and two cover systems all only use a kind of medium sensor to realize the process of detection human body and object.
Utility model content
Fundamental purpose of the present utility model is to provide the hardware system of a kind of radar for backing car and the combination of trunk open function, Supersonic inductor can be used as the inductor of reverse radar system and trunk open system simultaneously by coordinating corresponding control method, the ultrasonic listening function of recycling ultrasonic sensing device, realizes car-backing function and trunk function controlling part divides merging.The purpose of this utility model is realized by following technical scheme:
The system that radar for backing car and trunk open function combine, comprising:
Ultrasonic sensor group, is arranged on rear side of vehicle tail, is electrically connected with ultrasonic transmission/reception driver module;
Ultrasonic transmission/reception driver module, is electrically connected with central processor unit;
Human body sensing antenna, is arranged at below vehicle tail, responds to opening module be electrically connected with trunk;
Trunk induction opening module, is electrically connected with central processor unit;
Warning driver element, is electrically connected with central processor unit;
Sound and light alarm module, is electrically connected with warning driver element;
Vehicle PKE module, is electrically connected with central processor unit;
Vehicle CAN bus driver element, is electrically connected with central processor unit, connects vehicle CAN bus simultaneously;
Central processor unit, responds to opening module, warning driver element, vehicle PKE module and vehicle CAN bus driver element with ultrasonic transmission/reception driver module, trunk and is electrically connected.
As concrete technical scheme, described ultrasonic sensor group comprises four groups of ultrasonic sensors, is arranged on rear side of vehicle tail to lateral separation.
As concrete technical scheme, described ultrasonic transmission/reception driver module comprises: the ultrasonic drive circuit corresponding with ultrasonic sensor quantity, echo detecting circuit and analog-to-digital conversion circuit, ultrasonic drive circuit connects corresponding ultrasonic sensor, connect echo detecting circuit simultaneously, echo detecting circuit connects digital conversion circuit, and analog-to-digital conversion circuit is connected to the input end of central processor unit.
The beneficial effects of the utility model are: the function that the function of combining radar for backing car and trunk are opened, use same central processor unit, one or more ultrasonic sensor of recycling radar for backing car, detection vehicle rear, judge whether people stands in the appointed area at rear, tailstock portion, the constraint condition of automatically opening as trunk and foundation, utilize the authentication condition of PKE system as the identity of car owner of former car, thus make the foot position of human body sweep tailstock bottom after, just can automatically open car trunk.
Accompanying drawing explanation
The side schematic diagram of vehicle when Fig. 1 is prior art trunk unlatching mode of operation.
Fig. 2 is the system chart that the radar for backing car that provides of the utility model embodiment and trunk open function combine.
The vertical view in supersonic sounding region when Fig. 3 is utility model embodiment trunk unlatching mode of operation.
Fig. 4 is the process flow diagram of the control method of the system that the radar for backing car that provides of the utility model embodiment and trunk open function combine.
The side view in supersonic sounding region and induction antenna region when Fig. 5 is utility model embodiment trunk unlatching mode of operation.
Embodiment
As shown in Figure 2, the radar for backing car that the present embodiment provides and the system that trunk open function combines, comprising: the induction of ultrasonic sensor group, human body sensing antenna 11 (composition graphs 3), central processor unit, sound and light alarm module, warning driver element, ultrasonic transmission/reception driver module, trunk opening module, vehicle PKE module, vehicle CAN bus driver element and vehicle accumulator.
Wherein, radar for backing car mode control programs and trunk open mode control program is provided with in central processor unit 12.Ultrasonic sensor group comprises four groups of ultrasonic sensors 30,31,32,33, is arranged at vehicle tail to lateral separation, and see Fig. 3, be all electrically connected with ultrasonic transmission/reception driver module, ultrasonic transmission/reception driver module is electrically connected with central processor unit.Ultrasonic transmission/reception driver module comprises the ultrasonic drive circuit corresponding with ultrasonic sensor quantity, echo detecting circuit and analog-to-digital conversion circuit, is connected to the input end of central processor unit.Human body sensing antenna 11 and the electrical connection of trunk induction opening module, trunk induction opening module is electrically connected with central processor unit.Central processor unit controls the keying of trunk induction opening module, and the work that trunk induction opening module controls human body sensing antenna opens and closes, for the sensor signal of human body sensing being delivered to the input end of central processor unit.
Warning driver element is electrically connected with central processor unit, and sound and light alarm module is electrically connected with warning driver element, is controlled the keying of audible and visible alarm by central processor unit.Vehicle PKE module is electrically connected with central processor unit.Vehicle CAN bus driver element is connected to the input end of central processor unit, by the transmitting-receiving of central processor unit control bus data, obtained speed of a motor vehicle signal and the reversing signal of vehicle by access bus, and be sent to central processor unit, carry out calculation process by central processor unit.Vehicle accumulator provides working power for said system.
Shown in Figure 4, the control method of the system that above-mentioned radar for backing car and trunk open function combine comprises the following steps:
A control method for the system that above-mentioned radar for backing car and trunk open function combine, comprises the following steps:
(1) each submodule of initialization and unit, system enters sleep pattern;
(2) judge that whether central processor unit is received the reversing command signal of vehicle CAN bus by vehicle CAN bus driver element, be enter step (3A), otherwise enter step (3B);
(3A) central processor unit starts ultrasonic transmission/reception driver module and ultrasonic sensor group, enters radar for backing car mode of operation;
(3B1) central processor unit starts trunk induction opening module and human body sensing antenna, and judges whether the human-induced signal that exists below vehicle rear, is enter step (3B2), otherwise returns step (2);
(3B2) central processor unit obtains the speed information that provides of vehicle CAN bus by vehicle CAN bus driver element, if the speed of a motor vehicle is zero, it is non-vanishing to enter step (3B3) speed of a motor vehicle, returns step 2;
(3B3) central processor unit starts ultrasonic transmission/reception driver module and ultrasonic sensor, judges whether rear view of vehicle detects barrier, is, enters step (3B4), otherwise return step (2);
(3B4) central processor unit starts vehicle body PKE module, and whether qualification carries PKE electron key, is automatically open trunk, otherwise returns step (2).
Wherein, system described in step (3A) enters radar for backing car pattern and specifically comprises: (3A1) judges whether ultrasonic sensor detects barrier during backing, be enter step (3A2), otherwise return step (3A1); (3A2) warning driver element and sound and light alarm module is started.
Wherein, described ultrasonic sensor group comprises four groups of ultrasonic sensors, in step (3A), central processor unit starts four groups of ultrasonic sensors, and in step (3B3), central processor unit starts the two groups of ultrasonic sensors be positioned in the middle of vehicle rear.
As from the foregoing, said method consists predominantly of two kinds of mode of operations, and one is radar for backing car mode of operation, and another kind is that trunk opens mode of operation.Below in conjunction with Fig. 3, Fig. 4 and Fig. 5, specific works principle is described:
Radar for backing car mode of operation: after having reversing command signal, system is waken up at once and is entered radar for backing car mode of operation, multiple ultrasonic sensor is utilized to send ultrasound wave signal, ultrasound wave signal is received by sensor, work makes each ultrasonic sensor launch ultrasonic signal voluntarily and received by itself returns ultrasonic echo, take launch time as benchmark, judge that self-emission is time-consuming to receiving echoed signal institute, the distance of barrier is calculated again according to this time, and judged whether that barrier occurs with this distance, if having, give the alarm.
Trunk opens mode of operation: during command signal of not moveing backward, judge that the speed of a motor vehicle is now zero, whether the human body sensing antenna 11 of under-vehicle scans always has human body sensing position to enter or sweep, under being in long super low-power consumption, once the region 52 of the foot position of human body below induction in the middle of vehicle be detected, as shown in Figure 5, by judging the time curve of foot position at induction region of human body, notice central processor unit, central processor unit is in conjunction with the real-time status of vehicle and condition, judge two ultrasonic sensors 31 starting vehicle middle part, 32, as shown in Figure 3, detect the regions 35 (in Fig. 5 region 53) of specifying, judge whether that someone stands in this region, the PKE determining whether to start vehicle itself carries out the certification of car owner's identity, certification is by then pointing out and automatically opening trunk.
As shown in the above description, the utility model is that recycling ultrasonic sensor both used as radar for backing car mode of operation, open mode of operation as induction type trunk again to use, and combine uniting two into one of radar for backing car and trunk open function, improve the utilization factor of ultrasonic sensor detection, cost-saving.
Above embodiment is only fully open and unrestricted the utility model, all based on creation purport of the present utility model, replacement without the equivalence techniques feature of creative work, should be considered as the scope that the application discloses.
Claims (3)
1. a system for radar for backing car and the combination of trunk open function, is characterized in that, comprising:
Ultrasonic sensor group, is arranged on rear side of vehicle tail, is electrically connected with ultrasonic transmission/reception driver module;
Ultrasonic transmission/reception driver module, is electrically connected with central processor unit;
Human body sensing antenna, is arranged at below vehicle tail, responds to opening module be electrically connected with trunk;
Trunk induction opening module, is electrically connected with central processor unit;
Warning driver element, is electrically connected with central processor unit;
Sound and light alarm module, is electrically connected with warning driver element;
Vehicle PKE module, is electrically connected with central processor unit;
Vehicle CAN bus driver element, is electrically connected with central processor unit, connects vehicle CAN bus simultaneously;
Central processor unit, responds to opening module, warning driver element, vehicle PKE module and vehicle CAN bus driver element with ultrasonic transmission/reception driver module, trunk and is electrically connected.
2. the system of radar for backing car according to claim 1 and the combination of trunk open function, is characterized in that: described ultrasonic sensor group comprises four groups of ultrasonic sensors, is arranged on rear side of vehicle tail to lateral separation.
3. the system of radar for backing car according to claim 1 and the combination of trunk open function, it is characterized in that: described ultrasonic transmission/reception driver module comprises: the ultrasonic drive circuit corresponding with ultrasonic sensor quantity, echo detecting circuit and analog-to-digital conversion circuit, ultrasonic drive circuit connects corresponding ultrasonic sensor, connect echo detecting circuit simultaneously, echo detecting circuit connects digital conversion circuit, and analog-to-digital conversion circuit is connected to the input end of central processor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515745.7U CN204405838U (en) | 2014-09-09 | 2014-09-09 | The system that radar for backing car and trunk open function combine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515745.7U CN204405838U (en) | 2014-09-09 | 2014-09-09 | The system that radar for backing car and trunk open function combine |
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| Publication Number | Publication Date |
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| CN204405838U true CN204405838U (en) | 2015-06-17 |
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| CN201420515745.7U Expired - Lifetime CN204405838U (en) | 2014-09-09 | 2014-09-09 | The system that radar for backing car and trunk open function combine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536006A (en) * | 2014-09-09 | 2015-04-22 | 珠海上富电技有限公司 | Reversing radar and trunk opening functions combined system and control method thereof |
| CN105607070A (en) * | 2015-12-20 | 2016-05-25 | 华晨汽车集团控股有限公司 | Ultrasonic sensor detection method |
| CN111252033A (en) * | 2020-02-26 | 2020-06-09 | 新立科技股份有限公司 | Automobile tail door kick recognition system and method |
-
2014
- 2014-09-09 CN CN201420515745.7U patent/CN204405838U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536006A (en) * | 2014-09-09 | 2015-04-22 | 珠海上富电技有限公司 | Reversing radar and trunk opening functions combined system and control method thereof |
| CN105607070A (en) * | 2015-12-20 | 2016-05-25 | 华晨汽车集团控股有限公司 | Ultrasonic sensor detection method |
| CN111252033A (en) * | 2020-02-26 | 2020-06-09 | 新立科技股份有限公司 | Automobile tail door kick recognition system and method |
| CN111252033B (en) * | 2020-02-26 | 2022-02-11 | 新立科技股份有限公司 | Automobile tail door kick recognition system and method |
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Address after: 519000 Guangdong city of Zhuhai province Jinding town High-tech Zone Kwun Tong Sand Hill Industrial Zone, 1 factory buildings Patentee after: ZHUHAI COLIGEN CO., LTD. Address before: 519085 Guangdong Province town of Zhuhai Jin Sha Gang Kwun Tong industrial area 1 building Patentee before: ZHUHAI COLIGEN CO., LTD. |